Who designed the Quebec Bridge?

Theodore Cooper
Quebec Bridge/Architects

Title. The chief engineer of the Quebec Bridge Company, Edward Hoare, had never before worked on a bridge longer than about 90 meters (300 feet). The company decided to hire a consulting engineer, and Theodore Cooper was selected from a list of six prominent engineers for the project (Holgate et al., 1908, p.

Who ordered construction to resume on the Quebec Bridge?

The next day, McLure went to New York to seek advice from Cooper (Middleton 2001, pp. 78–79). The erection foreman that had ordered the work to stop changed his mind, and with reassurance from Edward Hoare, the chief engineer of the Quebec Bridge Company, resumed work again that day.

Who were found responsible for the Quebec bridge collapse?

Seventy five workers were killed in the accident, and there were only 11 survivors from the workers on the span. A distinguished panel was assembled to investigate the disaster. The panel’s report found that the main cause of the bridge’s failure was improper design of the latticing on the compression chords.

How many people died Quebec Bridge?

75
Of the 86 workers on the bridge that August 29, 1907, 75 died, many of them local Caughnawaga, famous for their high steel work. Some of the dead had been crushed by the twisted steel; others by the fall….Quebec Bridge Disaster.

How many times did the Quebec Bridge collapse?

The Quebec Bridge, in Quebec City, collapsed twice during its 30-year construction. In 1907, 75 workers were killed and 11 injured when the bridge, the design of which was later determined to be insufficient to support its own weight, completely collapsed.

Why did the Tacoma Narrows Bridge collapse?

The collapse of the Tacoma Narrows Bridge was driven by wind-generated vortices that reinforced the twisting motion of the bridge deck until it failed.

Why is the Quebec Bridge famous?

On December 3, 1919, the Quebec Bridge opened for rail traffic, after almost two decades of construction. Its centre span of 549 metres (1800 ft) remains the longest cantilevered bridge span in the world and is considered a major engineering feat.

How many seconds did it take for the Quebec Bridge to collapse in 1907?

29, 1907, around the same time that the Phoenixville meeting was ending, the Quebec Bridge suddenly collapsed. In the space of just 15 seconds, the south anchor arm, the cantilever arm and the partially completed suspended span fell some 150 feet into the St. Lawrence River.

What is the longest bridge in Quebec?

Pierre Laporte Bridge
The Pierre Laporte Bridge (French: Pont Pierre-Laporte) is the longest main span suspension bridge in Canada. It crosses the Saint Lawrence River approximately 200 metres (660 ft) west (upstream) of the Quebec Bridge between Quebec City and Lévis, Quebec. It is the longest non-tolled suspension bridge in the world.

What Canadian bridge collapsed twice?

The Quebec Bridge
The Quebec Bridge, in Quebec City, collapsed twice during its 30-year construction. In 1907, 75 workers were killed and 11 injured when the bridge, the design of which was later determined to be insufficient to support its own weight, completely collapsed.

Why do Canadian engineers wear a ring?

The Iron Ring is a symbol of professional duty and obligation worn by Canadian engineers. The Iron Ring was adopted as a symbol of that ritual, as a tangible reminder to those who wear it that they have specific obligations essential to the ethical performance of their duties.

What was the fundamental weakness of the Tacoma Narrows Bridge?

“The fundamental weakness” of the Tacoma Narrows Bridge, said a summary article published in Engineering News Record, was its “great flexibility, vertically and in torsion.” Several factors contributed to the excessive flexibility: The deck was too light.

Who was the designer of the Quebec Bridge?

The Phoenix Bridge Company was both the designer and contractor of the first bridge, with the assistance of famous engineer Theodore Cooper. In addition, Peter L. Szlapka was another engineer for the company that was responsible for much of the steel design work.

Is the Pont de Quebec important to Canada?

Pont de Québec is one of the most important historic bridges in the world, and its preservation should be considered essential. It should be maintained in pristine condition as one of Canada’s most famous bridges, like the Golden Gate Bridge or Brooklyn Bridge are maintained in the United States.

Why was the first Pont de Quebec Bridge bad?

Regardless, the Phoenix Bridge Company designed the first Pont de Québec, and it turns out they did a very poor job of it. The overall bridge design was not strong and massive enough for the crossing, and worse, they used too much material on some members and too little on others, resulting in excessive dead load.

What kind of beam was used on the Pont de Quebec?

Their patented “phoenix column” type of built-up beam was used on the many simple span truss bridges they built, mostly in the eastern United States.